PAR_EVEN
up->curregs[R4] = PAR_EVEN | X16CLK | SB1;
up->curregs[4] |= PAR_EVEN;
up->curregs[4] &= ~PAR_EVEN;
uap->curregs[4] |= PAR_EVEN;
uap->curregs[4] &= ~PAR_EVEN;
tx_parity_cfg |= PAR_EVEN;
rx_parity_cfg |= PAR_EVEN;
up->curregs[R4] = PAR_EVEN | X16CLK | SB1;
up->curregs[R4] = PAR_EVEN | X16CLK | SB1;
up->curregs[R4] |= PAR_EVEN;
up->curregs[R4] &= ~PAR_EVEN;
zport->regs[4] &= ~(XCLK_MASK | SB_MASK | PAR_ENA | PAR_EVEN);
zport->regs[4] |= PAR_EVEN;